OK I bought the wonldo (sp ?) test strips through the coop here. I use one Sunday and got a negative. I took one today and thought it was negative then noticed a faint, narrow pink line down the strip. You know how the strip bumps up and the plastic lays on top? It was under the plastic right after the bump. That isnt where a positive would show right? The 2nd line should be closer to the control line?